Atomera Inc (ATOM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

161,537Shares held by institutions

$578,302Value of institutional holdings

36.62%Institutional ownership %

25.39%Shares Changed QoQ

88No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Atomera Inc (NASDAQ:ATOM) is held by 94 institutional investors per 13F filings through December 2025.

These investors collectively held 33.7% of Atomera's outstanding shares in December 2025, down from 34.1% in September 2025.
They increased total shares held in ATOM by 0.82% quarter over quarter, and investors in Atomera increased 27.03% from a year ago.
Activity in ATOM broke down as 49 buyers, 28 sellers, and 17 unchanged among 94 total holders.
Altogether, these fund groups held 10.49Mn shares in ATOM by December 2025, up by 85.12K shares quarter on quarter, and up 1.61Mn shares year over year.
As of December 31, 2025, BlackRock, Inc. held the largest stake in Atomera with 1.97Mn shares, accounting for 6.34% of total shares outstanding.
The largest buyers of Atomera for the quarter ending December 2025 were MARSHALL WACE, LLP (179.28K), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (168.16K), Pathstone Holdings, LLC (167.9K), JANE STREET GROUP, LLC (121.46K), XTX Topco Ltd (96.27K).
The largest sales of ATOM for the quarter ending December 2025 came from Baird Financial Group, Inc. (663.54K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (215.84K), BARD ASSOCIATES INC (143.88K), CITADEL ADVISORS LLC (104.3K), Hilltop Holdings Inc. (61.6K).
According to Business Quant data, leading holders of ATOM for December 2025 are BlackRock, Inc. (1.97Mn), VANGUARD GROUP INC (1.65Mn), GEODE CAPITAL MANAGEMENT, LLC (740.98K), AVENIR CORP (614.38K), HOLLENCREST CAPITAL MANAGEMENT (606.55K), Quantum Private Wealth, LLC (598.85K), State Street Corp (489.15K), Baird Financial Group, Inc. (312.12K), Northern Trust Corp (276.13K), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (185.05K).

94 Institutional Holders

161,537 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	76,330	4.02%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	9,890	0.60%	$0.00
Quantum Private Wealth, LLC	31 Dec, 2025	71,739	13.61%	$0.00
Barclays Plc	31 Dec, 2025	5,220	12.48%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	17,658	2.44%	$0.00
Baird Financial Group, Inc.	31 Dec, 2025	-663,541	-68.01%	$0.00
AVENIR CORP	31 Dec, 2025	10,000	1.65%	$0.00
Pathstone Holdings, LLC	31 Dec, 2025	167,905	0.00%	$0.00
HOLLENCREST CAPITAL MANAGEMENT	31 Dec, 2025	7,479	1.25%	$0.00
Sargent Investment Group, LLC	31 Dec, 2025	2,500	1.53%	$0.00
State Street Corp	31 Dec, 2025	42,569	9.53%	$0.00
UBS Group AG	31 Dec, 2025	-17,248	-10.14%	$0.00
Northern Trust Corp	31 Dec, 2025	-17,406	-5.93%	$0.00
XTX Topco Ltd	31 Dec, 2025	96,270	0.00%	$0.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	31 Dec, 2025	168,163	995.58%	$0.00
Nuveen, LLC	31 Dec, 2025	22,644	59.33%	$0.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	90,386	99.39%	$0.00
CHANNEL WEALTH LLC	31 Dec, 2025	-4,700	-9.12%	$0.00
MARSHALL WACE, LLP	31 Dec, 2025	179,276	0.00%	$0.00
Jain Global LLC	31 Dec, 2025	31,143	0.00%	$0.00

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